Ball-point pen



FIG. 1 is a right side elevational view of a ball-point pen showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a perspective view thereof. 

The ornamental design for a ball-point pen, as shown. 